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the pupil
the pupil
This is the outermost layer of the eye excepting the cornea. It is composed of dense fibrous tissue to protect the internal eye structures and is also where the external ocular muscles insert to allow you to move your eyes.
Secretes aqueous humor to provide nutrients to the internal structures of the eye.
Two large arteries, one on each side of the head, that carry blood to the head and that divide into an external branch supplying the neck, face, and other external parts, and an internal branch supplying the brain, eye, and other internal parts.
iritis
The three layers that are cut through when doing a dissection of a cows eye are the external layer, internal layer, and the intermediate layer. The white part of the cows eye is called the sclera.
The medical term is "ophthalmoscope." It is a tool used by healthcare professionals to examine the interior structures of the eye, such as the retina and optic nerve.
An opthalmoscope is a lighted instrument that allows the clinician to examine the interior structures of the eye, including the retina.
Some external causes such as trauma or surgery to the eye, and some internal causes such as an unknown virus, an inflammatory condition, or a familial tendency have been suggested.
Retinoscopy or ophthalmoscopy is the process of examining the retina of the eye to examine the blood vessels and other structures.
"Pink eye" is a generic term most often used to describe conjunctivitis. Conjunctivitis has many, many causes. Without external injury or internal inflammation, the most common cause of acute conjunctivitis is a contagious infection of the virus adenovirus.